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प्रश्न
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
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- Label the parts 1 and 4 indicated in the diagram.
- Which of the above mentioned number is the thickest artery? Also write its name.
- Mention the number and chamber of the heart which has the thickest muscular wall.
- Which of the above numbers/structures has the maximum number of blood capillaries?
- Draw neat and labelled diagrams of the transverse section of vena cava and the part numbered as 3. Make sure to show the structural differences between these two in the diagram.
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उत्तर
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- Right auricle
- Left ventricle
- Aorta
- Body organs
- Number 3 is the thickest artery. The artery's name is Aorta.
- Number 2 has the thickest muscular wall, which is the left ventricle.
- The small intestine has the maximum number of blood capillaries.

APPEARS IN
संबंधित प्रश्न
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
How do you account for the following difference?
The walls of the right ventricle are thicker than those of the right auricle.
Explain with reasons.
Human blood is red coloured.
During surgical operations or during accidents, the patient may be given blood from outside to save his life. What is the technical name of this process? Briefly explain the precautions to be taken in this process.
Differentiate between:
Red blood cells and White blood cells
Complete the following sentence with appropriate word:
The chamber of heart which pumps blood into aorta is __________.
Use your brain power!
How is the air that we inhale purified in our body?
_____ gas is transported to all parts of the body.
All the waste products of the body are excreted through the circulatory system.
______ prevent blood clotting.

